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Finding the Third Proportional to 582 and 768.75

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Solution

The third proportional to 582 and 768.75 is: 1,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    582 : 768.75 = 768.75 : x
  2. Step 2: Convert to fraction form
    582/768.75 = 768.75/x
  3. Step 3: Cross multiply
    582x = 768.75 × 768.75
  4. Step 4: Simplify right side
    582x = 590,976.56
  5. Step 5: Solve for x
    x = 590,976.56/582
  6. Step 6: Final answer
    x = 1,015.42

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.